%0 Journal Article %T Seminar on Problems of Nonlinear Dynamics and Control in Moscow University %J Differencialʹnye uravneniâ %D 2003 %P 1144-1148 %V 39 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_8_a17/ %G ru %F DE_2003_39_8_a17